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At a Beijing supermarket, customers don't need a card to checkout. Instead, a camera scans their faces and matches it to a sales account. After entering a mobile phone number to charge the online account, the transaction is complete.

President Donald Trump announced Tuesday that the U.S. will not be a part of the Iran nuclear deal. He said the U.S. and its allies couldn't stop Iran from building a nuclear weapon “under the decaying and rotten structure of the current deal.”

The former White House chief strategist has been causing a stir since his departure from the Trump administration. Steve Bannon has declared war on the Republican establishment and he doesn’t plan to stop until the 2018 midterm election.

President Trump welcomed the Pittsburgh Penguins, winners of the 2017 Stanley Cup, the White House on Tuesday. Trump honored the coaches and the players, and said he "has a feeling" they will be back next year.